These lenses from Schneider can be very useful for changing the throw ratio
from a projector when the range provided by the projector manufacturer just
won't work for an installation. The lens on the left will shorten the throw
by a factor of 0.72x and will be available in November for $2,000 MSRP. The
lens on the right will lengthen the throw by a variable factor ranging from
1.1x to 1.4x (there is a ring for selecting the exact multiple). It will
also be available in November for $2,400 MSRP.